[1] Yonsei Univ, Div Cardiol, Dept Internal Med, Wonju Coll Med,Inst Life Style, Wonju 220701, South Korea
[2] Yonsei Univ, Div Cardiol, Wonju Christian Hosp, Wonju 220701, South Korea
[3] Korea Univ, Div Cardiol, Guro Hosp, Seoul, South Korea
[4] Sungkyunkwan Univ, Div Cardiol, Samsung Med Ctr, Seoul, South Korea
[5] Chungbuk Natl Univ Hosp, Div Cardiol, Cheongju, South Korea
[6] Univ Ulsan, Div Cardiol, Asan Med Ctr, Seoul, South Korea
[7] Yonsei Univ, Div Cardiol, Severance Hosp, Wonju 220701, South Korea
[8] Kyungpook Natl Univ Hosp, Div Cardiol, Taegu, South Korea
[9] Seoul Natl Univ, Div Cardiol, Seoul, South Korea
[10] Seoul Natl Univ, Div Cardiol, Bundang Hosp, Songnam, South Korea
[11] Dongguk Univ, Div Cardiol, Ilsan Hosp, Goyang, South Korea
[12] Hallym Univ, Div Cardiol, Med Ctr, Seoul, South Korea